An asymptotic preserving multidimensional ALE method for a system of two compressible flows coupled with friction

JOURNAL OF COMPUTATIONAL PHYSICS

卷:363

Article

Del Pino, S.¹  Labourasse, E.¹  Morel, G.^1,2 

[1] CEA, DAM, DIF, F-91297 Arpajon, France

[2] Pierre & Marie Curie Univ, LJLL, 4 Pl Jussieu, F-75005 Paris, France

关键词: Compressible gas dynamics;    Multi-fluid;    Finite volumes;    Unstructured meshes;    Asymptotic preserving;    Arbitrary-Lagrangian-Eulerian (ALE);   

DOI  :  10.1016/j.jcp.2018.02.016

来源: Elsevier

【 摘 要 】

We present a multidimensional asymptotic preserving scheme for the approximation of a mixture of compressible flows. Fluids are modelled by two Euler systems of equations coupled with a friction term. The asymptotic preserving property is mandatory for this kind of model, to derive a scheme that behaves well in all regimes (i.e. whatever the friction parameter value is). The method we propose is defined in ALE coordinates, using a Lagrange plus remap approach. This imposes a multidimensional definition and analysis of the scheme. (c) 2018 Elsevier Inc. All rights reserved.

【 授权许可】

Free